การ config type file บน GPFS ให้เป็น dio
Command config
- To enable direct IO for files:-
# mmchattr -D yes <qmgr data dir>/amqalchk.fil
# mmchattr -D yes <qmgr log dir>/amqhlctl.lfh
# mmchattr -D yes <qmgr log dir>active/S0000000.LOG
# mmchattr -D yes <qmgr log dir>active/S0000001.LOG
- To verify file already enabling direct IO:-
# mmlsattr /gpfs/<qmgr log dir>/amqalchk.fil
show [flags] -> [directio]